title: Experimental distinction between chaotic and strange nonchaotic attractors on the basis of consistency.
abstract: We experimentally study strange nonchaotic attractors (SNAs) and chaotic attractors by using a nonlinear integrated circuit driven by a quasiperiodic input signal. An SNA is a geometrically strange attractor for which typical orbits have nonpositive Lyapunov exponents. It is a difficult problem to distinguish between SNAs and chaotic attractors experimentally. If a system has an SNA as a unique attractor, the system produces an identical response to a repeated quasiperiodic signal, regardless of the initial conditions, after a certain transient time. Such reproducibility of response outputs is called consistency. On the other hand, if the attractor is chaotic, the consistency is low owing to the sensitive dependence on initial conditions. In this paper, we analyze the experimental data for distinguishing between SNAs and chaotic attractors on the basis of the consistency.
authors.affiliation: Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Kitakyushu 808-0196, Japan. uenohara-seiji@edu.brain.kyutech.ac.jp
authors.forename: Seiji
authors.initials: S
authors.lastname: Uenohara
authors.forename: Takahito
authors.initials: T
authors.lastname: Mitsui
authors.forename: Yoshito
authors.initials: Y
authors.lastname: Hirata
authors.forename: Takashi
authors.initials: T
authors.lastname: Morie
authors.forename: Yoshihiko
authors.initials: Y
authors.lastname: Horio
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Aihara